US20130052262A1 - Dabigatran etexilate-containing oral pharmaceutical composition - Google Patents

Dabigatran etexilate-containing oral pharmaceutical composition Download PDF

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Publication number
US20130052262A1
US20130052262A1 US13/582,183 US201113582183A US2013052262A1 US 20130052262 A1 US20130052262 A1 US 20130052262A1 US 201113582183 A US201113582183 A US 201113582183A US 2013052262 A1 US2013052262 A1 US 2013052262A1
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United States
Prior art keywords
pharmaceutical composition
oral pharmaceutical
composition according
binder
inorganic
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Abandoned
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US13/582,183
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English (en)
Inventor
Sandra Brueck
Jana Paetz
Martin Koeberle
Jutta Strohmeyer
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Ratiopharm GmbH
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Individual
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Assigned to RATIOPHARM GMBH reassignment RATIOPHARM GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KOEBERLE, MARTIN, PAETZ, JANA, Strohmeyer, Jutta, BRUECK, SANDRA
Publication of US20130052262A1 publication Critical patent/US20130052262A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2009—Inorganic compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
    • A61K31/4164—1,3-Diazoles
    • A61K31/4184—1,3-Diazoles condensed with carbocyclic rings, e.g. benzimidazoles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/4402—Non condensed pyridines; Hydrogenated derivatives thereof only substituted in position 2, e.g. pheniramine, bisacodyl
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/4427—Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems
    • A61K31/4439—Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. omeprazole
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/4841—Filling excipients; Inactive ingredients
    • A61K9/485—Inorganic compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P7/00—Drugs for disorders of the blood or the extracellular fluid
    • A61P7/02—Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system
    • A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis

Definitions

  • the present invention relates to an oral pharmaceutical composition containing dabigatran etexilate or a pharmaceutically acceptable salt thereof as active ingredient.
  • Dabigatran etexilate (3-[(2- ⁇ [4-(hexyloxycarbonylamino-imino-methyl)-phenylamino]-methyl ⁇ -1-methyl-1H-benzimidazole-5-carbonyl)-pyridine-2-yl-amino]-propionic acid ethyl ester) has the following chemical formula:
  • This active ingredient is already known from WO 98/37075.
  • the main indication field of said active ingredient is the postoperative prophylaxis of deep venous thromboses and the prophylaxis of strokes.
  • the solubility of the active ingredient in water is only 1.8 mg/ml. Moreover, the active ingredient has a strong pH-dependent solubility that is greatly increased in the acidic environment. This leads to the problem that conventional oral pharmaceutical compositions have large variations in the bioavailability since the solubility of the active ingredient depends on the pH value in the patient's stomach. This is particularly problematic with patients in whom the stomach pH value is changed by physiological variability, illness, or premedications (for example, PP inhibitors). There is therefore a need for oral pharmaceutical compositions of the active ingredient dabigatran etexilate that provide a release that is independent from the pH value of the stomach and thus, provide bioavailability of the active ingredient.
  • WO 03/074056 suggests a pharmaceutical composition for oral application that comprises in addition to the active ingredient one or more pharmaceutically acceptable organic acids having a water solubility of >1 g/250 ml at 20° C.
  • the corresponding pharmaceutical compositions may cause incompatibilities in the patient.
  • the addition of the organic acid restricts the possible amount of active ingredient in an appropriate tablet or capsule. This problem is further exacerbated by the fact that, as a rule, organic acids have only a low buffer capacity so that relatively large amounts of acid have to be added to cause a possible effect on the pH value of the ambience in dissolution of an appropriate tablet.
  • the present invention relates to an oral pharmaceutical composition comprising dabigatran etexilate or a pharmaceutically acceptable salt thereof, and an inorganic acidic excipient.
  • the oral pharmaceutical composition therefore is better tolerated than the compositions known in the prior art since the inorganic acidic excipient is based on acids or salts that are already present in the body.
  • inorganic acidic excipients often exhibit an only low molar weight so that the size of the dosage form can be reduced and the active ingredient load can be increased, respectively in comparison to conventional pharmaceutical compositions. This effect is enhanced by the fact that inorganic acidic excipients due to their high buffer capacity are able to absorb high intra-individual variations of the stomach pH value also in low amounts and thus, to ensure an uniform dissolution and influx of the active ingredient.
  • the inorganic acidic excipient employed in the oral pharmaceutical composition according to the invention should have a pH value in a 1% aqueous solution of ⁇ 6, preferably a pH value in the range of from 1-4.
  • a suitable inorganic acidic excipient can be any pharmaceutically acceptable excipient wherein it may be especially an inorganic acid or an inorganic acidic salt.
  • the amount of the employed inorganic acidic excipient can be chosen by the skilled person such that in dissolution of the oral pharmaceutical composition an acidic pH value is adjusted in the environment of the active ingredient.
  • the weight ratio of active ingredient to inorganic acidic excipient may be in the range of from 1:10 to 10:1.
  • inorganic acidic excipients are inorganic acids such as hydrochloric acid, sulfuric acid, and phosphoric acid.
  • in highly volatile acids such as hydrochloric acid it has proven to be advantageous if they are present also micro-encapsulated, adsorbed on a binder, or absorbed in a binder.
  • Binders suitable for this are in particular polymers and silicic acid, especially pyrogenic silicic acid such as aerosil.
  • the polymers there can be advantageously employed hydrophilic polymers and in particular water-soluble polymers having a water solubility of >0.01 mg/ml.
  • Micro-crystalline cellulose is also suitable.
  • hydrophilic polymer comprises polymers with polar groups.
  • polar groups are hydroxy, amino, carboxy, carbonyl, ethers, esters, and sulfonates. Hydroxy groups are particularly preferred.
  • the hydrophilic polymer has an average molecular weight in the range between 1000 and 250,000 g/mol, preferably 2000 and 100,000 g/mol, and particularly preferred between 4000 and 85,000 g/mol.
  • a 2% (w/w) solution of the hydrophilic polymer in pure water has preferably a viscosity between 2 and 8 mPas at 25° C. The viscosity is determined in accordance to the European Pharmacopoeia (Ph. Eur.), 6 th edition, section 2.2.10.
  • the hydrophilic polymer has preferably a glass transition temperature (Tg) between 20° C. and 220° C., preferably 25° C. to 160° C.
  • the glass transition temperature (Tg) is the temperature at which the hydrophilic polymer becomes brittle on cooling and soft on heating. That means that the hydrophilic polymer becomes soft above the glass transition temperature and can be plastically deformed without breaking.
  • the glass transition temperature is determined by means of a Mettler-Toledo® DSC 1 using a heating rate of 10° C./min. and a cooling rate of 15° C./min.
  • hydrophilic polymers examples include cellulose derivatives, in particular hydrophilic derivatives of the cellulose (e.g. HPMC, HPC, carboxymethylcellulose, preferably as sodium or calcium salt, hydroxyethylcellulose, hydroxypropylcellulose), polyvinylpyrrolidone, preferably with a molecular weight of from 10,000 to 60,000 g/mol, copolymers of PVP, preferably co-polymers comprising vinylpyrrolidone and vinylacetate units (e.g.
  • povidone, VA64, BASF preferably with a molecular weight between 40,000 and 70,000 g/mol
  • the acid can for example be sprayed onto the binder or rather granulated, or the binder can be dispersed in a solution of the acid.
  • a solution/suspension of acid and binder can be commonly spray dried or lyophilized, for example.
  • an inorganic acidic salt may be used as the inorganic acidic excipient.
  • inorganic acidic salt any pharmaceutically acceptable salt such as, for example hydrogen and dihydrogenphosphates, hydrogensulfates, ammonium chloride, ammonium sulfate, magnesium sulfate, magnesium chloride, ferrous chloride, ferric chloride, calcium chloride, and calcium sulfate is suitable.
  • Hydrogen and dihydrogenphosphates and hydrogensulfates are in particular alkali or ammonium salts, especially sodium, potassium, and ammonium salts.
  • the salts mentioned include their solvates, especially hydrates, such as for example magnesium chloride hexahydrate, calcium chloride mono or dihydrate, calcium sulfate dihydrate, magnesium sulfate monohydrate, and ferric chloride hexahydrate.
  • the inorganic salt should be water-soluble, wherein water-soluble salts are those having a solubility of >0.01 mg/ml. Further, mixtures of one or more inorganic acids and/or one or more inorganic acidic salts can be employed in the oral pharmaceutical composition according to the invention.
  • the inorganic acidic salt may either directly be mixed with the active ingredient and processed into appropriate pharmaceutical compositions or the salt can be prepared during the preparation of the pharmaceutical composition by adding an acid and a base.
  • suitable amounts of phosphoric acid and sodium or potassium hydroxide may be added to obtain a potassium phosphate buffer as the inorganic acidic salt.
  • the inorganic acidic salt may be present adsorbed on a binder or absorbed in a binder.
  • Suitable binders are those mentioned above for the inorganic acids, wherein appropriate adsorbates and absorbates also may be obtained in accordance to the methods mentioned above for the inorganic acids.
  • a particularly suitable pharmaceutically acceptable salt of the dabigatran etexilate is the mesylate salt, i.e. the salt of the methanesulfonic acid.
  • the high buffer capacity and the low molar mass of the inorganic acidic excipients employed according to the invention permit the preparation of oral pharmaceutical compositions with a high active ingredient load.
  • the oral pharmaceutical composition according to the invention contains more than 45% by weight, preferably more than 50% by weight dabigatran etexilate or a pharmaceutically acceptable salt thereof based on the total weight of the composition.
  • the inorganic acidic excipient is present in a core material consisting of or containing the excipient and that the core material is surrounded by an active ingredient-containing layer. Additionally, the core material and the active ingredient-containing layer can be separated from each other by an interlayer. Correspondingly build up pharmaceutical compositions are described in WO 03/074056 in more detail.
  • the oral pharmaceutical composition according to the invention may be present in the form of a capsule or a tablet.
  • the pharmaceutical composition can contain one or more further pharmaceutically acceptable excipients such as e.g. fillers, lubricants, flow control agents, release agents, and disintegrants.
  • excipients such as e.g. fillers, lubricants, flow control agents, release agents, and disintegrants.
  • the pharmaceutical composition can contain one or more filler(s).
  • a filler is a substance that increases the bulk volume of the mixture and thus the size of the resulting dosage form.
  • Preferred examples of fillers are lactose and calcium hydrogenphosphate.
  • the filler may be present in an amount of 0 to 80% by weight, preferred between 10 and 60% by weight of the total weight of the composition.
  • Lubricants The function of the lubricant is to ensure that the pelletizing and the ejection take place without much friction between the solids and the walls.
  • the lubricant is an alkaline-earth metal stearate or a fatty acid, such as stearic acid.
  • the lubricant is present in an amount of 0 to 2% by weight, preferably between 0.5 and 1.5% by weight of the total weight of the pharmaceutical composition.
  • Disintegrants Usually, by a disintegrant is meant a substance that is capable of breaking up the tablet into smaller pieces as soon as it is in contact with a liquid.
  • Preferred disintegrants are croscarmellose sodium, sodium carboxymethyl starch, cross-linked polyvinylpyrrolidone (crospovidon) or sodium carboxymethyl glycolate (e.g. explotab) and sodium bicarbonate.
  • the disintegrants is present in an amount of 0 to 20% by weight, preferably between 1 and 15% by weight of the total weight of the composition.
  • Flow control agents As the flow control agent there can be used e.g. colloidal silica. Preferably the flow control agent is present in an amount of 0 to 8% by weight, more preferably in an amount between 0.1 and 3% by weight of the total weight of the composition.
  • the release agent can be e.g. talcum and is present in an amount between 0 and 5% by weight, preferably in an amount between 0.5 and 3% by the weight of the composition.
  • the present invention relates to a method for the preparation of an oral pharmaceutical composition as described above which comprises mixing the active ingredient with the inorganic acidic excipient and optionally after further processing steps compressing the mixture to tablets or filling the mixture into capsules.
  • the inorganic acidic excipient is preferably micro-encapsulated, adsorbed onto a binder, or absorbed into a binder before mixing.
  • the inorganic acidic excipient may be for example mixed in solution with the binder or the binder may be dissolved in the buffer solution and dried subsequently. Drying can be carried out by spray drying, lyophilization, or granulation onto a carrier.
  • the inorganic acidic salts are dissolved in water and subsequently the pH value of the solution is adjusted to less than 3 with phosphoric acid.
  • the polymer is dissolved and subsequently spray dried/lyophilized.
  • the prepared intermediate is mixed with the active ingredient, filler, blasting agent, and flow improver for 15 min. on the tumbler. After adding the lubricant it is again mixed for 5 min.
  • the final mixture can be compressed to tablets or filled into capsules.
  • the active ingredient can already be added to the manufacturing process of the intermediates or the preparation may be transferred to a granule method.
  • the pH controlled polymer solution was used to granulate filler and active ingredient.
  • the dried granulate was sieved over 0.71 mm and subsequently mixed with disintegrant, flow improver for 15 min. on a tumbler. After adding the lubricant it was mixed for another 5 min.
  • the final mixture can be compressed to tablets or alternatively filled into capsules.
  • the inorganic acidic salt is dissolved in water and subsequently the pH value of the solution is adjusted to less than 3 with phosphoric acid. Subsequently, the solution is spray dried/lyophilized.
  • the prepared intermediate is mixed with the filler, disintegrant, and flow improver for 15 min. on the tumbler. After adding the lubricant it is again mixed for 5 min. The final mixture can be compressed to tablets or filled into capsules.
  • the active ingredient can already be added to the manufacturing process of the intermediate.
  • All substances except the magnesium stearate are mixed for 15 min. in the tumbler. After adding the magnesium stearate it is mixed for another 5 min. The final mixture can be compressed to tablets or filled into capsules.
  • Dabigatran etexilate mesylate 86.55 mg
  • Povidon 25 15.00 mg
  • An aqueous solution of Povidon 25 is adjusted to pH 1 with hydrochloric acid. With this granulation solution MCC is granulated in the fluid bed granulator. The dried granulate is mixed with Kollidon CL and Aerosil for 10 min. in the tumbler. After adding the magnesium stearate it is mixed for another 5 min. The final mixture can be compressed to tablets or filled into capsules.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Inorganic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Diabetes (AREA)
  • Hematology (AREA)
  • Vascular Medicine (AREA)
  • Urology & Nephrology (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
US13/582,183 2010-03-01 2011-02-28 Dabigatran etexilate-containing oral pharmaceutical composition Abandoned US20130052262A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10155059 2010-03-01
EP10155059.8 2010-03-01
PCT/EP2011/052919 WO2011107427A1 (fr) 2010-03-01 2011-02-28 Composition pharmaceutique orale contenant du dabigatran etexilate

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US20130052262A1 true US20130052262A1 (en) 2013-02-28

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US (1) US20130052262A1 (fr)
EP (1) EP2542224B1 (fr)
JP (1) JP5801826B2 (fr)
CA (1) CA2791561A1 (fr)
CY (1) CY1115556T1 (fr)
DK (1) DK2542224T3 (fr)
EA (1) EA201201202A1 (fr)
ES (1) ES2509117T3 (fr)
IL (1) IL221742A (fr)
PL (1) PL2542224T3 (fr)
PT (1) PT2542224E (fr)
SI (1) SI2542224T1 (fr)
WO (1) WO2011107427A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060183779A1 (en) * 2002-03-07 2006-08-17 Boehringer Ingelheim Pharma Gmbh & Co., Kg Administration form for the oral application of 3-[(2-{[4-(hexyloxycarbonylamino-imino-methyl)-phenylamino]-methyl}-1-methyl-1h-benzimidazol-5-carbonyl)-pyridin-2-yl-amino]-propionic acid ethyl ester and the salts thereof
WO2019192195A1 (fr) 2018-04-04 2019-10-10 上海汉都医药科技有限公司 Composition pharmaceutique contenant du dabigatran étexilate et son procédé de préparation

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ITMI20110445A1 (it) * 2011-03-22 2012-09-23 Lo Li Pharma Srl Formulazione farmaceutica comprendente inositolo.
CN103304539A (zh) * 2012-03-07 2013-09-18 天津药物研究院 达比加群酯苹果酸盐及其制备方法和应用
EP2740471B1 (fr) 2012-12-07 2015-05-27 Hexal AG Composition pharmaceutique orale comprenant le dabigatran etexilate
IN2013CH05441A (fr) * 2013-11-26 2015-05-29 Aurobindo Pharma Ltd
IN2014MU01042A (fr) 2014-03-26 2015-10-02 Cadila Healthcare Ltd
CN105919962B (zh) * 2015-12-18 2019-01-18 重庆两江药物研发中心有限公司 一种达比加群酯片剂及其制备方法
CN106491553A (zh) * 2016-12-09 2017-03-15 吉林省博大伟业制药有限公司 一种甲磺酸达比加群酯的新合成工艺
JP2019014712A (ja) * 2017-07-03 2019-01-31 エルメッド エーザイ株式会社 安定なダビガトラン製剤
JP2021014411A (ja) * 2019-07-10 2021-02-12 日医工株式会社 安定なダビガトランエテキシラート製剤

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060183779A1 (en) * 2002-03-07 2006-08-17 Boehringer Ingelheim Pharma Gmbh & Co., Kg Administration form for the oral application of 3-[(2-{[4-(hexyloxycarbonylamino-imino-methyl)-phenylamino]-methyl}-1-methyl-1h-benzimidazol-5-carbonyl)-pyridin-2-yl-amino]-propionic acid ethyl ester and the salts thereof
US9925174B2 (en) * 2002-03-07 2018-03-27 Boehringer Ingelheim International Gmbh Administration form for the oral application of 3-[(2-{[4-(hexyloxycarbonyl-amino-imino-methyl)-phenylamino]-methyl}-1-methyl-1 H-benzimidazol acid ethyl ester and the salts thereof
WO2019192195A1 (fr) 2018-04-04 2019-10-10 上海汉都医药科技有限公司 Composition pharmaceutique contenant du dabigatran étexilate et son procédé de préparation
US11707455B2 (en) 2018-04-04 2023-07-25 Shanghai Wd Pharmaceutical Co., Ltd Pharmaceutical composition containing dabigatran etexilate and preparation method thereof

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PL2542224T3 (pl) 2014-12-31
SI2542224T1 (sl) 2014-10-30
WO2011107427A1 (fr) 2011-09-09
ES2509117T3 (es) 2014-10-17
CY1115556T1 (el) 2017-01-04
PT2542224E (pt) 2014-10-03
IL221742A (en) 2015-09-24
EA201201202A1 (ru) 2013-04-30
EP2542224B1 (fr) 2014-08-13
JP2013521244A (ja) 2013-06-10

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